Urban forest analysis tools

Android app

We have developed a number of small tools that are available for free download (see also Publications). If you use any of these tools, we would greatly appreciate it if you could let us know about your experiences, corrections and suggestions--especially concerning those under current development.


i-Tree Streets

City Values worksheet

In order for Streets to compute the very useful benefit-cost ratio, it requires a certain amount of data to be entered about City expenditures for tree management. This worksheet in Excel® format serves three functions: 1) to organize and manage the collection of City data; 2) to help the City official involved in the collection of these data; and 3) to provide a ready Appendix for Streets projects reports so that the computational basis may be reviewed.

Click to download

Data collector for Android devices

Using a free open-source app called ODK Collect from the Open Data Kit (ODK) people, anyone with an Android device--including Kindle Fire--can quickly and accurately record inventory data. Data can then be exported into a spreadsheet for use with i-Tree Streets. We have developed the form that is necessary and figured out how this is most easily done.

Installation and use


SIA calculator

Risk assessment

SIA Calculator

Interested in exploring the Statics Integrated Assessment method invented by Dr. Lothar Wessolly, we created a spreadsheet version of the load and safety calculator for desktop use. This tool is only meant for educational purposes; for professional purposes, the user is directed to the official version.

Click to download

Field Load Estimator

As an aid to including potential load into the process of risk assessment, we developed a handy form for use in the field. For the documentation behind this sheet, consult the original article.

Click to download

ISA BMP Tree Risk Assessment Lookup Template

Wanting to speed up tree risk assessment using the new method in the BMP Tree Risk Assessment (ISA 2011), we automated the lookup process and added additional tables. For the use of this spreadsheet, consult the original article.

Click to download


Shoot Death Diagnosis

In an effort to avoid jumping to conclusions about the observation of shoot death, we developed a data dictionary in order to proceed step-wise through the process. For the argument behind this dictionary, consult the forthcoming article in Arborist News.

Click to download


Title page of Android app

Health

We have developed data-collection tools to accompany our new book on Urban Tree Health that include a smartphone app as well as a simple data sheet.

Data collector for Android devices

Using a free open-source app called ODK Collect from the Open Data Kit (ODK) people, anyone with an Android device--including Kindle Fire--can quickly and accurately record observations and interpretations on the health of an urban tree. Data can then be exported into a spreadsheet for use. We have developed the form that is necessary, following the methodology in our Urban Tree Health, and figured out how this can be done most easily.

Installation and use

Data sheet

For training and non-electronic use, we have developed a simple data sheet for field use. It provides an easy way for the user to collect health and (limited) non-health data, and to record the Health Score and summary.

FieldDataSheet.pdf